The Black BookA telephone directory for all of Humboldt County. This directory has complete white and yellow page listings for every town in Humboldt County.
HumGuideYou're already here! HumGuide is the oldest, most comprehensive guide to what's online in Humboldt County.
Craig's List: Humboldt CountyNot exactly based locally, but about the local area, this Humboldt version of Craig's list has fairly active classifieds and other features.